Fluid-shell structure interaction analysis by coupled particle and finite element method
Fluid-shell structure interaction analysis by coupled particle and finite element method
复制标题
DOI：
10.1016/j.compstruc.2007.01.019
复制
发表时间：
2007-06
影响因子：
4.7
通讯作者：
Chen Jian Ken Lee;H. Noguchi;S. Koshizuka
中科院分区：
文献类型：
--
作者：
Chen Jian Ken Lee;H. Noguchi;S. Koshizuka
本文提出了一种流壳结构相互作用分析的质点耦合有限元方法。流动分析采用运动粒子半隐式(MPS)方法，有限元分析采用MITC4壳单元。本文考虑了流体和结构解算器之间的分割耦合。为了满足所采用的分区耦合格式的兼容性，流体和结构都采用了Neumann-Dirichlet条件。在分析壳体结构时，采用了辛时间积分格式进行能量守恒。如果壳分析的频率远高于MPS流体解算器的频率，则其时间积分格式是子循环的。将所提出的耦合格式用于模拟弹性薄壳结构中的晃动现象时，观察到流体破碎和结构的大变形。
This paper presents a coupled particle and finite element method for fluid–shell structure interaction analysis. The Moving Particle Semi-Implicit (MPS) method is used to analyze fluid flow and the MITC4 shell element is used in the FEM analysis of the structure. This paper considers partitioned coupling between the fluid and structural solvers. In order to satisfy compatibility in the employed partitioned coupling scheme, the Neumann–Dirichlet condition is applied to both the fluid and the structure. A symplectic time integration scheme is used to preserve energy when analyzing the shell structure. If the frequencies of the shell analysis are much higher than those of the MPS fluid solver, its time integration scheme is sub-cycled. When the presented coupling scheme was applied to simulate the sloshing phenomenon in an elastic thin shell structure, fluid fragmentation and large structural deformations were observed.